$color: #ed4e4d;
$bg: #999999;
h1{
  background: $bg;
  color: $color;
  width: 200px;
}
.img_box{
  margin-top: 100px;
  background-color: pink;
  width: 200px;
  height: 200px;
  img{
    width: 100%;
    height: 100%;
  }
}
.bg{
  background-image: url("../images/gwc.png");
  background-size: 100% 100%;
  background-repeat: no-repeat;
  width: 200px;
  height: 200px;
}
.box{
  width: 200px;
  height: 200px;
  background-color: yellow;
}